This compact and lightweight thermal bivi bag is made to create a single-person emergency shelter in tough conditions. The material reflects and retains over 90% of radiated body heat, and is also windproof and waterproof. It\'s ideal for protecting casualties and reducing the effects of shock or hypothermia, emergency shelter, or for extreme endurance racers. One adult size bag, weighing in at only 100g, in high visibility orange with emergency instructions printed on the outside. Can be reused multiple times,